City expansion, vehicle growing number, fossil fuel consumption as non-renewable energy, and highest carbon emission has increased green house effect with potentially expanding global warming. Global warming has negative impacts on citizen quality of life as well as economic growth. Makassar City as one of the metropolitan in Indonesia with the high number of vehicle has a potential to endure global warming. This is excarbated by the decreasing environmental carrying capacity caused by household and industrial pollution and greater vehicle emission. This study aims to (1) identify the vehicle emission gas using descriptive analysis, (2) evaluate ambient air quality in several locations within Makassar City based on field measurement, and (3) formulate the zone plan with potential vehicle-sourced high pollution using AHP. It can be concluded from this study that 99% of Makassar City’s pollution is caused by vehicle emissions with specifically refers to vehicle ages, car engine types, and low maintenance. It is found that high pollution level occurs in the suburbs, while medium pollution level happens in the transition zone and low level of pollution in city center. Urban infrastructure improvement is carried out by Makassar City Development Agency (Bappeda) with consistency ratio between 0.05 and 0.06.